you will have to remove the inner panel of the side door (small pull-out clips) to acces the lock. once in you should be able to open the door using the rod visible.
as for the door locking fault i would try replacing the battery in the fob a spare key if you have one or see about getting the one you have re-programmed or changed.
hope all goes well!!
DannyTheSparky
December 2008